INITIAL START UP
Ice Maker:
1. Remove front panel.
2. Remove two screws and the control box cover.
3. Remove the evaporator cover.
4. Remove the left side service panel.
5. Check that the ON/WASH/OFF rocker switch
and the Compressor ON-OFF toggle switch are in
the OFF position, on the control box.
6. OPEN the water supply line shut off valve.
7. Inside the control box is the shaft of the timer
and the switch assembly. Rotate the shaft of the
timer and switch assembly clockwise to where the
actuator arm on the microswitch drops off outer
cam into cam slot. See Timer Cam Positions.
8. Move the ON/WASH/OFF rocker switch to the
ON position.
9. Observe water fill cycle: The water pump will be
operating and the water inlet solenoid valve will
OPEN. Incoming water flows from the valve
through the tubing, the reservoir fills and excess
water drains out the machine drain. At the end of
the harvest cycle the water inlet solenoid valve will
close and the water fill cycle is complete. If the
reservoir is not full, turn the shaft of the timer
clockwise into a new harvest cycle; this opens the
water valve again.
The water pump forces water from the reservoir up
to the water distributor at the top of each
evaporator plate, where water is dispensed,
cascades down both sides of the evaporator plate
and drains back into the reservoir for recirculation.
10. Check that the water cascades down over the
cube molds and into the reservoir. Note: Some
spray is normal on new machines.
11. When the reservoir is full, move the
compressor ON-OFF switch to the ON position.
12. Check operation of the freezing cycle: Very
shortly ice begins to form in the cube cells, and
tubing becomes frosted at the top of the
evaporator plate. Freezing time will be longer than
average for the first cycle.. Average complete
cycle time is about 14 - 16 minutes.
13. Warm water should begin to flow from the
condenser drain.
Note: To optimize the balance between ice
production and water use, the water cooled
discharge pressure must be 245 P.S.I.G. Check
the discharge pressure and adjust the water
regulating valve to obtain 245 P.S.I.G. pressure.
14. Check CUBE SIZE
The dimensions of the cubes are fixed by the size
and shape of the molds on the evaporator plate,
except that the thickness of the cube MAY need to
be adjusted at start up. There is only one size of
cube that is correct; adjusting the cube size control
to that size of cube will allow the ice maker to
produce ice at its most efficient size. The correct
size cubes will be fully formed at the edges; will
harvest off of the evaporators beginning with
individual cubes at the top of the evaporator, then
vertical strips for the balance; and will appear
similar to the illustration for “Correct Size Cube”.
TIMER CAM POSITIONS
MICRO
SWITCH
ACTUATOR
CAM &
SHAFT
HARVEST
PORTION
FREEZE
PORTION
CME865W & CME1002W
December, 1994
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